org.apache.james.smtpserver.POP3BeforeSMTPHandler.java Source code

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Here is the source code for org.apache.james.smtpserver.POP3BeforeSMTPHandler.java

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 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.smtpserver;

import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.HierarchicalConfiguration;
import org.apache.james.lifecycle.api.Configurable;
import org.apache.james.protocols.api.Response;
import org.apache.james.protocols.api.handler.ConnectHandler;
import org.apache.james.protocols.lib.POP3BeforeSMTPHelper;
import org.apache.james.protocols.smtp.SMTPSession;
import org.apache.james.util.TimeConverter;

/**
 * This ConnectHandler can be used to activate pop-before-smtp
 */
public class POP3BeforeSMTPHandler implements ConnectHandler<SMTPSession>, Configurable {

    /** The time after which ipAddresses should be handled as expired */
    private long expireTime = POP3BeforeSMTPHelper.EXPIRE_TIME;

    /*
     * 
     */
    public void configure(HierarchicalConfiguration config) throws ConfigurationException {
        try {
            setExpireTime(config.getString("expireTime", null));
        } catch (NumberFormatException e) {
            throw new ConfigurationException("Please configure a valid expireTime: " + e.getMessage());
        }
    }

    /**
     * Set the time after which an ipAddresses should be handled as expired
     * 
     * @param rawExpireTime
     *            The time
     */
    public void setExpireTime(String rawExpireTime) {
        if (rawExpireTime != null) {
            this.expireTime = TimeConverter.getMilliSeconds(rawExpireTime);
        }
    }

    /**
     * @see org.apache.james.protocols.api.handler.ConnectHandler#onConnect(org.apache.james.protocols.api.ProtocolSession)
     */
    public Response onConnect(SMTPSession session) {

        // some kind of random cleanup process
        if (Math.random() > 0.99) {
            POP3BeforeSMTPHelper.removeExpiredIP(expireTime);
        }

        // Check if the ip is allowed to relay
        if (!session.isRelayingAllowed()
                && POP3BeforeSMTPHelper.isAuthorized(session.getRemoteAddress().getAddress().getHostAddress())) {
            session.setRelayingAllowed(true);
        }
        return null;
    }

    @Override
    public void init(Configuration config) throws ConfigurationException {

    }

    @Override
    public void destroy() {

    }
}